GRAIN-BOUNDARY-INDUCED MAGNETO-FAR-INFRARED RESONANCES IN SUPERCONDUCTING YBA2CU3O7-DELTA THIN-FILMS

Authors
LIHN HTS CHOI EJ KAPLAN S DREW HD LI Q FENNER DB
Citation
Hts. Lihn et al., GRAIN-BOUNDARY-INDUCED MAGNETO-FAR-INFRARED RESONANCES IN SUPERCONDUCTING YBA2CU3O7-DELTA THIN-FILMS, Physical review. B, Condensed matter, 53(2), 1996, pp. 927-931
Citations number
31
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
53
Issue
2
Year of publication
1996
Pages
927 - 931
Database
ISI
SICI code
0163-1829(1996)53:2<927:GMRIS>2.0.ZU;2-O
Abstract
Spectral features induced by 45 degrees in-plane misoriented grains ha ve been observed in the far-infrared magnetotransmission of YBa2Cu3O7- delta thin films. Two strong dispersive features are found at 80 and 1 60 cm(-1) and a weaker one at 116 cm(-1). The data can be well represe nted by Lorentzian oscillator contributions to the conductivity. Sever al possible interpretations are discussed. We conclude that the resona nces are due to vortex core excitations.